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the Reflection Filter Render Element.

The Coat Filter RE stores reflection information calculated from

the VRayMtl Coat Layer. Surfaces with the Coat Amount parameter set to 0 contain no information in the render pass and therefore render as black.

While

the Raw Coat Reflection Render Element

 gives the full reflection of objects reflecting in the scene, Coat Filter RE shows how much of that reflection should come through in the composite. In other words, the filter defines the strength of the reflection, while the raw reflection channel defines what is being reflected in the image. When these two elements are multiplied, the true level of reflection is given and

produces Coat Reflection RE. Using these component parts of the reflection, you can better fine-tune the reflection in your final composite.

VRayVFB – When enabled, the render element appears in the V-Ray Frame Buffer.

Deep output – Specifies whether to include this render element in deep images.

Color mapping – Applies the color mapping options specified in the Color mapping rollout (Render Setup window > V-Ray tab) to this render element. This option is enabled by default.

Multiplier – Sets the overall intensity of the render element, where 1.0 is the standard multiplier.

Denoise – Enables the render element's denoising, provided the Denoiser render element is present.

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